If you eat too much fat while taking Alli you may end up with loose or liquid stools and may even lose control of bowel movements.
Even weight loss supplements available only by prescription cannot guarantee weight loss success. Responding to a systematic review of dietary supplements, the American Dietetic Association (ADA), which is now known as the Academy of Nutrition and Dietetics, stated that there is “no evidence that any specific dietary supplement is effective in reducing body weight.”
As with all supplements, the decision whether or not to use supplements for weight loss is a personal choice. If you are considering diet supplements, read labels carefully and do your research to be sure the product is safe. Talk to your healthcare provider for advice and to make sure there are no interactions between the supplement and any prescription medications you may be taking.
American Dietetic Association. Ethics Opinion: Weight Loss Products and Medications. Web. January 15, 2012.
Centers for Disease Control and Prevention. Overweight and Obesity: US Obesity Trends. Web. January 15, 2012.
US Food and Drug Administration. FDA 202: Dietary Supplements. Web. January 15, 2012.
US Food and Drug Administration. Weight Loss Fraud. Web. January 15, 2012.
US Food and Drug Administration. Beware of Fraudulent Weight-Loss ‘Dietary Supplements’. Web. January 15, 2012.